"2-and-0, 2-and-0," coach Jeff Fisher said his team repeated.
Sam Bradford threw three touchdown passes, St. Louis added a score on defense and special teams and the Rams stunned the mistake-prone Texans with a 38-13 win on Sunday to win their second straight after dropping their previous three games.
"I think everyone totally bought in," Bradford said of the turnaround. "I think if you look at the way we've played the past two weeks; it's been a completely different mindset, a completely different attitude."
Rookie first-round pick Alec Ogletree pushed the lead to 38-6 when he took an interception by T.J. Yates back 98 yards for a touchdown. Yates was in after Texans starting quarterback Matt Schaub sustained an apparent right ankle injury.
Coach Gary Kubiak didn't have many details on Schaub's injury after the game, saying only: "Matt's got a little bit of everything on that one leg."
Schaub didn't have a turnover after throwing six interceptions, three of them returned for touchdowns in the past three games.
But several other Texans had key gaffes as preseason Super Bowl hopeful Houston (2-4) lost its fourth straight game.
"For the past few weeks the finger has been pointed in one direction a lot," Kubiak said. "But we sprung leaks all over the place today."
The Texans had 95 yards of penalties, lost two fumbles and Yates threw two interceptions. Schaub had 186 yards passing and Yates finished with 98 yards passing.
"We played our absolute worst football the last two weeks and we've got to change it," Houston safety Ed Reed said.
Bradford was 12 of 16 for 117 yards. Rookie Zac Stacy had 18 carries for 79 yards in his second straight start.
"To come out here and play a pretty much complete game was fun," St. Louis defensive end Chris Long said. "Offense and defense were in complete sync."
Brian Quick's 4-yard touchdown reception extended the Rams' lead to 24-6 early in the third quarter.
Rodney McLeod forced the fumble by Martin on the ensuing kickoff and Bates, an undrafted free agent, scooped it up and returned it 11 yards, diving into the end zone for the score.
Schaub was injured on Houston's next drive when he was sacked by Long. Some fans cheered while he was down after the injury, angering Houston's players.
"For them to cheer about something like that, it just shows they have no class," Andre Johnson said.
He was replaced by Yates. Schaub had thrown an interception that was returned for a touchdown in four straight games entering Sunday.
Yates made it five in a row for Houston when his first drive ended with the interception return by Ogletree, who high-stepped his way into the end zone as the home fans serenaded the Texans with boos.
The Rams capitalized on the fumble with a 42-yard field goal by Greg Zuerlein to push the lead to 10-0 early in the second quarter.
Houston cut the lead to 10-3 with a 20-yard field goal by Randy Bullock.
Houston settled for another field goal just before halftime when Schaub's pass on third down fell incomplete to make it 17-6 at halftime.
About the only highlight for Houston on Sunday was the play of Arian Foster, who finished with 20 carries for 141 yards. He added four catches for 57 yards.
Ben Tate scored Houston's only touchdown on a 1-yard run in the fourth quarter.
Martin has an injured shoulder. ... Houston S Danieal Manning has a right knee injury, but Kubiak didn't know how severe it was after the game. ... Janoris Jenkins had an interception for the Rams.
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